Photocopy machine



Dec. 3, 1935. W, LLOYD 2,022,891

' PHOTOCOPY MACHINE Filed Aug. 13, 1955 6 Sheets-Sheet 2 INVENTR Whitten 7D. Lloyd 74 WML,

ATTORNEY Dec. 3, 1935. w. P. LLOYD 2,022,891

PHOTOCOPY MACHINE Filed Aug. 13, 1955 6 Sheeis-Sheet 3 yzo INVENTOR WWL??? D (afp/d MMM ATTORNEY Dec. 3, 1935. W. P. LLOYD 2,022,891

PHOTOCOFY MACHINE Filed Aug. 13, 1935 6 Sl'lee'S--Shei 4 INVENTOR Wma@ P Magd ATTORNEY l Dec. 3, 1935.

w. P. LLOYD 2,022,891

PHOTOCOPY MACHINE Filed Aug. 13, 1935 6 Sheets-Shea?I 5 INVENTOR 74 mamen 7? hyd AfA/WM.

ATTORNEY Dec. 3, 1935.

W. P. LLOYD PHOTOCOPY MACHINE Filed Aug. l5, 1955 6 Sheets-Sheet 6 INVENTOR www 7? ca/yd ATTCRN EY Patented Dec. 3, 1935 UNITED STATES PATENT OFFICE The Haloid Company, poration of New York Application August 13,

16 Claims.

This invention relates to a photo copy machine of the general type in which sensitized paper is fed from a supply roll after each exposure and severed., and it has for its object to afford simple and eflicient mechanism that can be readily and accurately controlled by the' operator, and which serves automatically to feed the proper amount of paper after each exposure in accordance with the position of the curtain which is adjustable for different sized exposures.

In a more particular aspect, the invention is intended to afford an adjustable curtain and curtain positioning mechanism arranged for cooperation with a paper feeding mechanism which is operated from a power or driving member that travels through a given path at each operation, and is automatically connected with the paper feeding mechanism during a part of its travel, the extent of travel of the power member during which the driven member and paper feeding mechanism is connected being determined by a movable element that is adjustably located by the curtain positioning mechanism.

Another purpose of the invention is to enable the operator, by performing a single operation, to cause one complete rotation of the power or driving member, thereafter stopping the latter automatically, and also to automatically control a paper pressure roll from said power member.

To these and other ends, the invention consists in the construction and arrangement of parts that will appear clearly from the following de'- scription when read in conjunction with the accompanying drawings, the novel features being .pointed out in the claims following the specification.

In the drawings:

Fig. l is a side elevation of a photo copy machine, partially broken away to show the interior of the magazine, incorporating one possible embodiment of the invention;

Fig. 2 is an enlarged vertical sectional view on line 2-2 of Fig. l, with parts appearing in elevation;

Fig. 3 is: a side elevation of the mechanism shown in Fig. 2; i

Fig, 4 is a sectional view on line 4 4 of Fig. 2, showing the parts in normal position;

Fig. 5 is a View similar to Fig. 4 showing the position of the parts when the curtain has been adjusted, and the connecting mechanism has just established connection between the driving member and the driven member of the paper feeding mechanism, and

Fig. 6 is a similar view showing the position of Rochester, N. Y., a cor- 1935, Serial No. 35,979

the parts just as the driven member of the paper feeding mechanism has been disconnected from the driving member during the latter part of the movement of the latter.

Referring more particularly to the drawings, 5 in which like reference characters refer to the same parts throughout the several views, I designates the body portion of a photo copy machine, see Fig. 1, 2 is the usual bellows, 3 is the magazine, and 4 is the roll box for carrying the sensi- 10 tized paper that is fed therefrom into the magazine.

6 designatesI the curtain that is woundupon a spring roller 1 and has its lower end connected to endless chains 8, see Fig. 1, which travel around 15 sprocket wheels 9, see Figs. 2 and 3, the latter being fixed on a spindle ID having an operating handle II at its end outside the casing, whereby the curtain is adjusted by the operator to any desired position to afford a larger or smaller area 20 of paper for exposure.

According to the present invention, the curtain is adjusted to any desired position and can remain in such position for repeated subsequent exposures, the paper being fed down after each 25 exposure by mechanism that always travels in the same direction and automatically determines the amount of paper to be fed in accordance with the preestablished position of the curtain. In order to effect such control of the paper feeding mechanism, the spindle IIl has fixed thereon a pinion I2 that engages and operates a gear I3 which has fixed to its inner face a stop or block I4 which is movably positionable in accordance with the adjustment of the curtain and operates to vary the amount of paper that is fed in a manner that will presently be described. The gear I3 is fixed on a sleeve I5, see Fig. 2, that carries a dial I 6 cooperating with an indicating scale on the outer face of the housing I1, see Fig. 1, so as to enable the operator to readily determine the position of the curtain.

In general, the paper is fed. by means of a rotating power or driving member or gear that travels through a fixed path, as for instance', 45 makes one complete rotation at each operation, and during such rotation is automatically connected. with and disconnected from the paper feeding roll throughout a varying distance, depending upon the position of the curtain as it 50 affects the aforementioned stop I4. This is pr-eferably accomplished in the following manner.

2t designates the paper feeding roll mounted on a shaft 2| which has fixed thereon a pinion 22 that is driven by a gear 23, see Figs. 2 and 3, 55

the latter turning loosely on the spindle 24. 25 designates the driven member which is preferably in the form of a toothed or notched wheel that is fixedly supported on the gear 23. The driven member 25 is operated by a driving member preferably in the form of a gear 21 that is engaged and actuated by a gear 28 by mechanism that will be described later and which wh-en operated, causes the gear 21 to complete one rotation and then stop. During such rotation of the driving member 21, it is operatively connected with the driven member 25 by connecting mechanism so as to cause a greater or lesser movement of the paper feeding roll 20, depending on the position of the stop I4, in the following manner.

Pivotally supported on the driving member 21 is an arbor 3l which extends through the gear 21, see Fig. 3, and carries at one end a clutch element in the form of a pawl or detent 32 arranged to engage the teeth on the driven member 25, and at its other end a dog or tail piece 34. As the driving member 21 rotates in an anticlockwise direction from the normal position shown in Fig. 4, assuming the curtain to have been adjusted until the movable stop I4 is in the position shown in Fig. 5, the driving member 21 turns without causing any movement of the driven member 25 until dog 34 strikes the block or stop i4, as shown in Fig. 5. This causes the arbor 3l and pawl or detent 32 to be tilted, bringing said dog into engagement with the teeth on the driven member 25, and continued movement of the driving member 21 from that point on carries with it the driven member 25 and the gear 23, causing a corresponding turning of the paper feeding roll 2li. This continues until the dog 34 engages a stationary stop 36, see Fig. 6, shifting the detent 32 out of engagement with the teeth of the driven member.

In the arrangement shown, the operation of the driven member and paper feeding mechanism is always stopped at a xed point, whereas the starting of the movement of the driven member and paper feeding mechanism takes place at a variable point, depending upon the position of the curtain and the stop I4, although this sequence of operations might be reversed to accomplish the same end. As long as the stop I4 remains in one position, the same amount of paper will be fed at each operation of the driving member, and when the position of the curtain is changed to vary the size of the exposure, the position of the stop i4 is correspondingly changed, to increase or decrease the extent of movement of the paper feeding movement likewise.

The paper, when fed downwardly, passes between the feed roll 2G and the pressure roll 4l, see Figs. 2, 3, 5 and 6. The pressure roll is located in the focal plane, as shown in Fig. 3, when the paper is feeding, and when the paper is exposed for making a copy, the pressure roll is swung downwardly out of the focal plane and out of engagement with the feed roll 2B. In order to accomplish this, the pressure roll 4I is mounted in suitable pivoted supports, one of which comprises an arm 42 xedly mounted on a pivoted arbor which carries at its opposite end an arm fixed thereon, see Fig. 5, to which is connected a link 44. The other end of the link is pivoted to a rock arm 45 which is fixed on a rock shaft 45, see Fig. 4, the latter also having xed thereon an arm 41 carrying a roller 48 which engages the periphery of the cam 49 that is fixed upon the aforementioned spindle 24. so as to turn with the driving member 21. The cam 4@ has its periphery cut away as indicated at 55 in Fig. 4, in which the rock shaft 46, controlling cam, and other parts are shown in normal position.

As the driving member 21 commences its rotation, during the initial part of its travel the roller 48 is moved by the cam from the position shown in Fig. 4 to that shown in Fig. 5, swinging the pressure roll from its normal lowered position shown in Fig. 4 upwardly into engagement with the feed roll. This movement of the pressure roll takes place before the connecting mechanism is operated to connect the driven member with the driving member, so that the pressure roll is in engagement with the feed roll before the latter is operated to feed the paper, and at the latter part of the movement of the driving member, after the connecting mechanism has been operated to disconnect the driven member, the cutaway portion of the cam, coming into contact with the roller 48, permits it and the arm 49 to return to normal position under the action of the controlling spring 52, see Fig. 4, thus restoring the pressure roll to its lowered position.

The driving member is moved at each operation through a fixed path, in the present embodiment making one complete rotation, and this is brought about by the following mechanism.

The aforementioned gear 28 is fixedly mounted on an arbor 6l, see Fig. 2, while rotatably mounted on said arbor is a worm gear 52 that is engaged and driven by a worm 53 on a shaft 64 that is continuously operated by the motor E5. Carried by the gear 23 is a slidably mounted clutch member 65 actuated normally to its outermost position shown in Fig. 2 by a spring 5l. In this position, the clutch member is positioned in a slot between adjacent projections 58 on the worm gear 62, and thus acts to drive the gear 2 with the worm gear 52. The clutch element @iii is slidable laterally to disengage it from the projections 68, and to accomplish this is provided with a central slot or opening 59, with the side wall of which cooperates the cam surface 'iii on an arm 'H pivoted at 12 and held normally in its upward position by a spring 13. 14 is a handle connected by a link 15 to the arm 1i by which the operator draws the arm downwardly to disengage it from the clutch member 66.

The normal position of the slidable clutch member 66 is indicated in Fig. 4, where it is disengaged from the projections on the worm gear 52. To effect a paper feeding operation, the operator pulls downwardly on the handle i4 until the arm 1l is in the position shown in Fig. 5, and then releases it. Movement of the arm 1i downwardly releases the clutch element 55 which then moves laterally under the action of spring 11 to engage between the projections on the worm wheel 62. The latter, which is turning continuously, then operates the gear 22 until the clutch member 55 again comes into engagement with the cam surface l@ on the arm 1i, which automatically disengages the clutch member iii and stops movement of the gear 28 after it has completed one rotation. The latter likewise effects one rotation of the driving member 21, thus transmitting the necessary movement to the paper feeding roll through the parts previously described. It will be understood that any suitable mechanism may be employed for imparting, at each operation, movement to the driving member through one complete rotation or one fixed path,

and then bringing it to a stop, each such operation causing movement of the paper feeding roll an amount determined by the position to which the curtain has been adjusted.

While the invention -has been described With reference to a certain structural embodiment, it is not confined to the details disclosed, and this Iapplication is intended to cover any modiiications or departures that may come within the purposes of the improvement or the scope of the following claims.

I claim:

1. In a photo copy machine, the combination with paper feeding mechanism including a driven member, of a driving member movable through a fixed path at each operation, an adjustable curtain, and connecting mechanism controlled by the position of the curtain operating to connect said driven member with the driving member during variable portions of the movement of the latter.

In a photo copy machine, the combination with paper feeding mechanism including a driven member, of a driving member, a motor, manually controlled means for operating the driving member through one lrotation from said motor and then automatically stopping the driving member, an adjustable curtain, and connecting mechanism controlled by the position of the curtain operating to connect said driven member with the driving member during variable portions of the movement of the latter.

3. In a photo copy machine, the combination With paper feeding mechanism including a driven member, of a driving member movable through a fixed path at each operation, an adjustable curtain, connecting mechanism controlled by the position of the curtain operating to connect said driven m-ember with the driving member during variable portions of the movement of the latter, a paper feed roll, a pressure roll, and means controlled by said driving member acting to move the pressure roll into engagement with the feed roll during the initial movement of the driving member and out of engagement therewith during the latter part of the movement of the driving member.

4. In a photo copy machine, the combination with paper feeding mechanism including a driven member, of a driving member movable through a fixed path at each operation, an adjustable curtain, connecting mechanism operating automatically to connect said driven member with the driving member, and means governed by the position of the curtain for controlling said connecting mechanism to vary the extent of the path through which the driven member is operated by the driving member.

5. In a photo copy machine, the combinationI with paper feeding mechanism including a driven member, of a driving member, a motor, manually controlled means for operating the driving member through one rotation from said motor and then automatically stopping the driving member, an adjustable curtain, connecting mechanism operating automatically to connect said driven member with the driving member, and means governed by the position of the curtain for controlling said connecting mechanism to vary the extent of the path through which the driven member is operated by the driving member.

6. In a photo copy machine, the combination with paper feeding mechanism including a driven member, of a driving member movable at each operation through a fixed path, an adjustable curtain, connecting mechanism for connecting said driven member with the driving member, means controlled by the position of the curtain for automatically operating said connecting mechanism to connect the driven member with the driving member at a variable point in the travel of the latter, and means for operating said connecting mechanism to disconnect said parts at a fixed point in the travel of the driving member.

7. In a photo copy machine, the combination With paper feeding mechanism including a driven member, of a driving member movable at each operation through a fixed path, connecting means for connecting said driven member with the driving member and including a movable clutch element carried by the driving member, a curtain, curtain positioning mechanism including a stop movably located in the path of said clutch element and acting automatically to operate the latter at a variable point during movement of the driving member dependent upon the position of the curtain, and a fixed stop located in the path of said. clutch element and operating to disconnect said driven member from the driving member at a xed point in the travel of the latter.

8. In a photo copy machine, the combination with paper feeding mechanism including a drive-n member, of a driving member movable at each operation through a xed path, an adjustable curtain, connecting mechanism for connecting said driven member with the driving member, means controlled by the position or" the curtain for automatically operating saidA connecting mechanism to connect the driven member With the driving member at a variable point in the travel of the latter, means for operating said connecting mechanism to disconnect said parts at a fixed point in the travel of the driving member, a motor, and manually controlled means for operating the driving member through one rotation from said motor and then automatically stopping the driving member.

9. In a photo copy machine, the combination With paper feeding mechanism including a driven member, of a driving member movable at each operation through a xed path, connecting means for connecting said driven member with the driving member and including a movable clutch ele-- ment carried by the driving member, a curtain, curtain positioning mechanism including a stop movably located in the path of said clutch element and acting automatically to operate the latter at a variable point during movement of the driving member dependent upon the position of the curtain, a fixed stop located in the path of said clutch element and operating to disconnect said driven member from the driving member at a iiXed point in the travel of the latter, a motor, and manually controlled means for operating the driving member through one rotation from said motor and then automatically stopping the driving member.

10. In a photo copy machine, the combination with paper feeding mechanism including a driven member, of a driving member movable at each operation through a fixed path, an adjustable curtain, connecting mechanism for connecting said driven member with the driving member, means controlled by the position of the curtain for automatically operating said connecting mechanism to connect the driven member with the driving member at a variable point in the travel ofthe latter, means for operating said connecting mechanism to disconnect said parts at a iixed point in the travel of the driving member, a paper feed CTI roll, a pressure roll, and means controlled by said driving member acting to move the pressure roll into engagement with the feed roll during the initial movement of the driving member and out of engagement therewith during the latter part of the movement of the driving member.

11. In a photo copy machine the combination With paper feeding mechanism including a driven member, of a driving member movable through a xed path at each operation, connecting mechanism including a clutch element pivotally mounted on said driving member and adapted to engage the driven member, an adjustable curtain, curtain positioning mechanism, a stop controlled by the curtain positioning mechanism and movably located in the path of said clutch element, and a stationary stop also located in the path of said clutch element, said stops acting automatically to connect said driven member with the driving member during variable portions of the travel of the latter depending upon the position of the curtain,

12, In a photo copy machine, the combination with paper feeding mechanism including a driven member, oi a driving member movable through a Xed path at each operation, connecting mechanism operating automatically to connect said driven member with the driving member, an adjustable curtain, curtain positioning mechanism, a stop controlled by the curtain positioning mechanism and cooperating movably with said connecting mechanism, and a xed stop cooperating with said connecting mechanism, said movable and Xed stops acting tc vary the extent of operation of the driven member by the driving member depending upon the position of the curtain.

13. In a photo copy machine, the combination With paper feeding mechanism including a driven member, of a driving member movable thrcugh a fixed path at each operation, a paper feeding roll and a pressure roll, means operating during the initial movement of said driving member for moving the pressure roll into engagement With the feed roll and during the latter part of the movement of said driving member for moving the pressure roll away from engagement with the feed roll, an adjustable curtain,

` curtain positioning mechanism, a movable stop actuated thereby, and connecting mechanism controlled by said movable stopl and operating automatically to connect said driven member With the driving member during a variable portion of the travel of the latter depending upon the position oi the curtain.

14. In a photo copy machine, the combination with paper feeding mechanism including a driven member, of a driving member movable through a fixed path at each operation, a pressure roll, mechanism controlling the position of said pressure roll including a cam movable with said driving member, an adjustable curtain, curtain positioning mechanism including a movable stop, and connecting mechanism including a clutch element movably mounted on the driving member and automatically controlled by said stop for connecting the driven member With the driving member during variable portions of the travel of the latter.

i5. In a photo copy machine, the combination With paper feeding mechanism including a driven member, of a driving member adapted to complete one rotation at each operation, connecting mechanism for connecting said driven member with the driving member, an adjustable curtain, and means controlled by the position of said curtain for operating said connecting mechanism to eiect movement of the driven member from the driving member during variable portions of the rotation of the latter.

16. In a photo copy machine, the combination with paper feeding mechanism including a driven member, of a driving member movable through a iiXed path at each operation, a pressure roll, mechanism controlling the position of said pressure ro-ll including a cam movable With said driving member, an adjustable curtain, curtain positioning mechanism including a movable stop, connecting mechanism including a clutch element movably mounted on the driving member and automatically controlled by said stop for connecting the driven member with the driving member during variable portions of the travel of the latter, a motor, and manually controlled means for operating the driving member through one rotation from said motor and then automatically stopipng the driving member.

WHITTEN P. LLOYD. 

